Relationships are all about supporting each other — and that’s exactly what Gabby and Dwyane do. They totally balance each others out!

Forget cheering from the sidelines! Actress Gabrielle Union gets way more involved while watching her boyfriend, Miami Heat player Dwyane Wade, in action! “I feel like I’m the coach in the stands [at Dwyane’s basketball games],” Gabby confessed to HollywoodLife.com exclusively Aug. 28 at the Swagg tent during the closing day of the Bridgehampton Polo Challenge hosted by Hamptons Magazine in Bridgehampton, N.Y. “I’m usually screaming things out that I probably shouldn’t!”

“I don’t like it at all [when she does that],” Dwyane jokingly admitted to us. “It’s not even what shes says, it’s the looks she gives me. … I might glance at her every now and then [during a game.] She’ll give me this look — this ‘toughen up’ thing — so I don’t really look over there.”

But Dwayne’s not the only one getting coached. “He came on set this last summer for Army Wives,” Gabrielle, 37, explained. “He was like, ‘Remember how you were coaching me from the side lines? I have a couple of notes for you from that last take!'”

“I had to pull her aside and tell her to get it together,” Dwyane said. “It was her first day back and I was there. She was a little nervous, so I had to go over and put my arm around her. I was playing the supportive boyfriend with just a little tough love.” Aww!

This type of back-and-forth is nothing new for Gabby and Dwyane. “It’s a friendship,” Dwyane told us. “We have a relationship where we support each other. We both want to see each other succeed. It’s never just about her life or my life, its about both of us succeeding!”